.demos-hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0 40px;
    text-align: center;
}

.demos-hero-section .container {
    max-width: 800px;
}

.demos-hero-section h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.demos-hero-section p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.demos-section {
    padding: 60px 0;
}

.demos-section .container {
    max-width: 1200px;
}

/* 标签导航样式已整合到common.css */

#cases-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
}

.case-card {
    background-color: white;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 12px 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.case-card:hover {
    border-color: #667eea;
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.15);
}

.case-card.active {
    border-color: #667eea;
    background-color: #f8f9ff;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.2);
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 6px;
}

.case-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
    color: #333;
    line-height: 1.4;
}

.quick-preview-btn {
    background: transparent;
    border: none;
    color: #667eea;
    cursor: pointer;
    /* padding: 4px; */
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.quick-preview-btn:hover {
    background-color: rgba(102, 126, 234, 0.1);
}

.case-description {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 图表展示容器样式已整合到common.css */

.chart-display-section .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid #e0e0e0;
}

.chart-display-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    color: #333;
}

.chart-error {
    text-align: center;
    padding: 40px;
    color: #e74c3c;
    background-color: #fadbd8;
    border-radius: 8px;
    font-weight: 500;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .demos-hero-section {
        padding: 60px 0 30px;
    }
    
    .demos-hero-section h1 {
        font-size: 2rem;
    }
    
    .tabs-navigation {
        padding: 0 40px;
    }
    
    .tab-nav-btn {
        width: 35px;
        height: 35px;
    }
    
    #cases-container {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    /* 响应式调整已整合到common.css */
}